Tenochtitlan · event 4 of 7

c. 1450

Nezahualcóyotl’s dyke. A ten-mile earthwork separates the brackish eastern lake from the fresh western one, controlling flooding and salinity. Its neglect after the conquest is why the city floods for centuries.

The Tenochtitlan era

  1. c. 100 AD
  2. 1325
  3. 1428
  4. c. 1450
  5. 1487
  6. 8 November 1519
  7. 1520

See the full timeline or read the history of Mexico City.